| abstract |
The invention relates to aqueous dispersions of organosilicon compounds preparable using (A) a mixture consisting essentially of inorganic filler (B) and siloxane (C) containing units of the formula R a (R 1 O) b SiO (4-a-b)/2 (I), (D) silanes of the formula R 3 cR 2 n d Si (OR 4 ) 4-c-d (II), and/or partial hydrolyzates thereof, where the radicals and indices are each as defined in claim (1), optionally (E) organopolysiloxanes, (F) emulsifier, (G) water and optionally (H) further substances, to processes for production thereof and to the use thereof, especially for hydrophobizing impregnation and bulk hydrophobicization of mineral and organic building materials. |